Carbon-remover.



No Drawing. I

CHRISTIAN B. LONGE NECKER, OF PHILADELPHIA, PENNSYLVANIA;

GARBGN-REMO'VER.

ioness.

To all whom it may concern:

when inserted into the heated cylinder of an internal combustion engine,and while the engine is thereafter in operation, to cause the carbondeposits on the walls of the cylinder to loosen and pass out with theexhaust gases; to lubricate the cylinder, and to give a peculiar odor tothe exhaust gases while the carbon removing elements are in thecylinder, whereby it may be determined, by the absence of the peculiarodor, when said elements have passed out with the exhaust.

In carrying out my invention, I take suitable proportlons 10f a sodiumsalt, sulfur, and pure graphite, and thoroughly mix the same by any wellknown means, and this mixture is, by means of dies, compressed intotablets of suitable size for insertion inders of internal combustionengines. I

have found in. practice that a very effective compound for the purposestated is made by using the above mentioned elements or ingredients inapproximately the following proportions by weight: sodium chlorid, 81parts, sulfur, 12 parts, and graphite, 3 parts;

also sodium chlorid, 40 parts, sodium car-.

bonate, 40 parts, sulfur, "12 parts, and graphite, 3 parts. While theseproportions are preferred, I do not confine myself thereto. Eithersodium chlorid alone, or sodium carbonate alone, or a mixture of thetwo,

may be used with the other ingredients.

The relative proportions of the sodium salt to sulfur may be variedconsiderably, with more or less satisfactory results. Thus, in theillustration just given the carbon-removing elements, sodium salt andsulfur, are in the proportions, one to the other, of 87 per cent. of thesalt and 13 per cent. sulfur.' The relative proportions of these twoingredients may vary from.60 per cent. salt to 40 per cent. sulfur, to95 per cent. salt and 5 per cent. sulfur. Whatever the relativeproportions of the carbon removing elements,

Specification of Letters Patent. v Pietemtfitli JUJQQ 3@, 1914's.,Application filed October 4, 1913. Serial No. 793,339.

the lubricating element, graphite, will only be a small percentage ofthe entire mass, and may be the same for all mixtures.

Tnusing the tablets or pellets, the engine is operated until thecylinders are hot. Then the spark plug is removed from one cylinder anda suitable number of tablets,say five or six 24 grain tablets-isinserted through the spark plug opening into the cylinder and the plugis then replaced and the engine is then started. The sodium salt and thesulfur, under the action of the heat, combine with the carbon andoperate to chemically disintegrate and loosen the carbon depositswithin. the cylinder, which pass out with the exhaust gases. Thegraphite, which does not change with the heat, remains, largely, in thecylinder and serves as a lubricant for the piston. The.

sulfur gives a peculiar odor to the exhaust the absence of the odor,when the carbon removing elements of the compound have been practicallyexhausted from the cylinder. It is desirable to treat only one cylinderat a time, as the explosions may not take place regularly in thecylinder under treatment. It can be determined from the absence of thepeculiar odor before mentioned when the compound has ceased to act inone cylinder, and the engine may then be stopped and treatment appliedto the next cylinder, and so on until all of the cylinders of the enginehave been treated.

As the compound is in the form of dry tablets, it is convenient tohandle and the amount of material required, as determined by experienceor the condition of the cylinder, can readily be selected and insertedin the cylinder.

What I claim is: r I 1. A compound for treating cylinders of internalcombustion engines comprising a sodium salt and sulfur in theproportions of from 60 to per cent. of the former to 40 to 5 per cent.of the latter.

2. A compound for treating cylinders of 13 per cent. of the latter, anda small quan- In testimony whereof I have afiixed my tity of drylubricant. 1 d f signature, in presence of two witnesses.

4. A compound for treating cy in are 0 internal combustion enginescomprising so- OHBISHAN LONGENEGKER' 5 dium chlorid and sulfur in theproportions Witnesses:

of from 60 to 95 per cent. of the former to v ROBERT WATSON,

40 to 5 per cent. of'the latter. Emm R. LONGENECKER.

